'''
Created on 2024年7月22日

@author: Administrator
'''

class Dog:
    def __init__(self,name,age):
        self.name = name
        self.age = age
    
    def sit(self):
        print(f"{self.name} is now sitting.")
    def roll_over(self):
        print(f"{self.name} rolled over")
        
my_dog = Dog('Willie',6)
print(f"My dog's name is {my_dog.name}")
print(f"My dog is {my_dog.age} years old")
my_dog.sit()
my_dog.roll_over()
